Voir la notice de l'article provenant de la source Math-Net.Ru
@article{IVM_1998_10_a0, author = {I. A. Aleksandrov and G. D. Sadritdinova}, title = {Mappings with rotation symmetry}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {3--6}, publisher = {mathdoc}, number = {10}, year = {1998}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1998_10_a0/} }
I. A. Aleksandrov; G. D. Sadritdinova. Mappings with rotation symmetry. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 10 (1998), pp. 3-6. http://geodesic.mathdoc.fr/item/IVM_1998_10_a0/